CN101088133B - Method and device for the secure operation of a switching device - Google Patents
Method and device for the secure operation of a switching device Download PDFInfo
- Publication number
- CN101088133B CN101088133B CN2005800446948A CN200580044694A CN101088133B CN 101088133 B CN101088133 B CN 101088133B CN 2005800446948 A CN2005800446948 A CN 2005800446948A CN 200580044694 A CN200580044694 A CN 200580044694A CN 101088133 B CN101088133 B CN 101088133B
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- Prior art keywords
- switchgear
- main contacts
- bridge
- cut
- point
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
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- General Physics & Mathematics (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention relates to a method and to a device for the secure operation of a switching device comprising at least one main contact which can be switched on and off and which comprises contact pieces and a displaceable contact bridge, and also at least one control magnet which comprises a displaceable anchor. The anchor acts upon the contact bridge when it is switched on or off such that the corresponding main contact is opened and closed. The method comprises the following steps: a) the displaceable contact bridge of the at least one main contact recognises when an opening point has been exceeded after being switched off, b) the additional operation of the switching device is interrupted, according to a predetermined duration of time, when the opening point is not exceeded.
Description
Technical field
The present invention relates to a kind of method and a kind of corresponding device thereof that is used to make a switchgear trouble free service.
Background technology
By switchgear, low voltage switchgear especially, but current path between break-make power supply unit and the power consumption equipment and operating current thereof.That is to say, can open and close the power consumption equipment that is connected in these current paths safely by come the electric current of make-and-break path with switchgear.
The low tension switchgear, for example contactor, circuit breaker or compact starter, have be used for more than one the electric current of make-and-break path, can be by the main contacts of control magnet control more than one.These main contactss comprise that in principle an activity touches bridge (movable contact link) and a plurality of fixed contact therefors that are connected power consumption equipment and power supply unit.In the time of need making main contacts closure or disconnection, send one to the control magnet and be switched on or switched off signal accordingly, the control magnet just can touch bridge to activity by its armature subsequently and have an effect, make activity touch bridge and finish relative motion, thereby be switched on or switched off the current path that needs control with respect to fixed contact therefor.
Better contact for making contact and touching between the bridge, be furnished with the contact-making surface of taking respective design on the two position that comes in contact.Constitute the material of contact-making surface, silver alloy for example is coated in simultaneously and touches on the position that bridge and contact can come in contact to each other, and has certain thickness.
Each make-break operation all can make the material of contact-making surface be consumed.The factor that influences extent of deterioration has: along with increase pitting of contacts or the degree of wear of make-break operation number of times strengthens; Deformation extent strengthens; The contact erosion phenomenon that the degree that is subjected to arcing or environmental impact (for example steam or suspended material or the like) and produces is gradually long.The result that the contact-making surface material is consumed be can't be again break-make operating current effectively, thereby cause occurring phenomenons such as current interruptions, heating of contact or contact weld.
In the case, along with the increasing of pitting of contacts degree, the thickness that is coated in the material on the contact-making surface can reduce gradually especially.This can make the switch over travel between the contact-making surface that touches bridge and contact elongated, and the contact force when finally causing closure reduces.Consequently, along with increasing of make-break operation number of times can't make the contact effectively closed again.The spring of contact can cause heating of contact when current interruptions that causes therefrom or connection, thereby increases the weight of the fusing of slider material to a certain extent, and this can cause the contact-making surface generation welding of main contacts.
When the main contacts of switchgear is consumed or the welding phenomenon occurs, close power consumption equipment safely with regard to unrenewable switchgear.Therefore, when the contact weld phenomenon occurring, even receiving under the situation of cut-off signal, the current path that has described welding main contacts at least still remains on electriferous state, and consequently power consumption equipment does not disconnect from power supply unit fully.Owing to therefore power consumption equipment is in unsafe condition, thereby the switchgear of this moment is a potential source of trouble.
In the case; the defencive function that for example meets in the compact starter of IEC 60 947-6-2 regulation will be restricted; this compact starter has an additional protection mechanism, and when carrying out make-break operation, this protection mechanism can be had an effect to main contacts as the control magnet.
Therefore, thus for reaching the purpose that makes switchgear trouble free service protection power consumption equipment and electrical system, must prevent the appearance of this source of trouble.
Summary of the invention
The objective of the invention is respective reaction is discerned and made to this potential source of trouble.
This purpose is reached by a kind of method of a switchgear trouble free service that makes, but described switchgear has main contacts and at least one control magnet of at least one closed and disconnected, described main contacts has a plurality of contacts and bridge is touched in an activity, described control magnet has a moving armature, described armature is had an effect to the described bridge that touches when described switchgear is switched on and disconnects, and makes corresponding main contacts closed and disconnected; Described method comprises the following steps:
A), bridge is touched in the activity of described at least one main contacts after disconnection, whether surpass a cut-off point and discern by touching the state that bridge is in effective member that is connected with described;
B) if described member the state that is kept after the disconnection with disconnect after predetermined state do not conform to, just be illustrated in through described cut-off point behind the predetermined lasting time and be not exceeded, interrupt the further work of described switchgear; With
A kind of device that is used to make a switchgear trouble free service, but described switchgear has main contacts and at least one control magnet of at least one closed and disconnected, described main contacts has a plurality of contacts and bridge is touched in an activity, described control magnet has a moving armature, described armature is had an effect to the described bridge that touches when described switchgear is switched on and disconnects, but makes corresponding main contacts closed and disconnected;
It is characterized in that,
Be provided with first member, described first member is used to discern and surpasses a cut-off point that touches bridge of described at least one main contacts whether, and comprises a release mechanism, and described release mechanism effectively is connected with the described bridge that touches, and can enter one first and one second state,
Be provided with other members, when described first member is identifying after the disconnection when not being exceeded through described cut-off point behind the predetermined lasting time, described other members interrupt the further work of described switchgear.
By the present invention simply mode identify the contact weld phenomenon that when carrying out opening operation, is occurred, identify the dangerous operating state of switchgear whereby, and this made corresponding reaction.
According to the present invention, when disconnecting a switchgear, following situation is discerned for this reason, whether the activity that is at least one main contacts touches bridge above a cut-off point, if not being exceeded through described cut-off point behind the predetermined lasting time, with regard to the further work of interrupt switch equipment.
In the case, predetermined cut-off point is corresponding to a disconnection stroke (opening path) of measuring in advance that touches bridge, and under this disconnection stroke situation, the described bridge that touches still links to each other with contact.When finishing opening operation, promptly as desired, disconnect measured behind at least one main contacts one disconnect stroke less than or when being less than or equal to this predetermined cut-off point at least, can think to have the welding phenomenon this moment, just switchgear is in dangerous operating state.
At this moment, the activity in the switchgear is touched bridge and is configured as camber member usually, all has a contact-making surface on two opposing ends.When switchgear was connected, one touches bridge was moved, and its contact-making surface contacts with the corresponding contact face of two relevant fixed contact therefors, thereby power consumption equipment is linked to each other with power supply unit.When switchgear disconnects, touch mobile that bridge takes place and make that corresponding contact-making surface is separated from one another, in the case, main contacts disconnects, and causes power consumption equipment to disconnect from power supply unit.For guaranteeing that when switchgear is connected two contact-making surfaces that touch bridge contact with the corresponding contact face safety of fixed contact therefor, touch bridge and do not take rigidity construction mode usually, but have certain admissible suppleness especially.When welding or a certain when bonding takes place between the contact-making surface of at least one contact-making surface that touches bridge and corresponding fixed contact therefor, touching the pliability that bridge has can make it bend earlier when switchgear disconnects, rest on subsequently on the position, when touching bridge and be in this position, the switchgear under the off-state just is in a kind of unsafe operating state.
If the appearance situation to this dangerous operating state in switchgear continuous firing process is monitored and discerned, just can in time end the further work of switchgear.
In the case, can guarantee that by method and apparatus of the present invention one for example is the switchgear of contactor, circuit breaker or compact branch road, the especially trouble free service of triple-pole switch equipment.
Other favourable execution modes of the present invention and advantageous modification can obtain from dependent claims.
Description of drawings
By accompanying drawing the present invention and favourable execution mode thereof are elaborated below, wherein:
Fig. 1 is the simplified flow chart of method of the present invention;
Fig. 2 is first execution mode of device of the present invention;
Fig. 3 is second execution mode of device of the present invention; And
Fig. 4 is the 3rd execution mode of device of the present invention.
Embodiment
As shown in Figure 1, receive a cut-off signal after, method of the present invention is mainly implemented following two steps:
Whether step a) is touched bridge to the activity of at least one main contacts and is discerned above a cut-off point after disconnection;
If step b) is not being exceeded through described cut-off point behind the predetermined lasting time, with regard to the further work of interrupt switch equipment.
In view of the above, should be at opening operation, promptly special behind the cut-off signal of three main contactss that receive a triple-pole switch equipment of a requirement disconnection, whether all main contactss of switching devices have all disconnected is tested.
At this moment, main contacts comprises two and touches the contact that bridge links to each other by an activity.That is to say that main contacts can be closed or disconnects, thereby a power consumption equipment is linked to each other with a power supply unit, or power consumption equipment is disconnected from power supply unit.Activity in the switchgear is touched bridge and is configured as camber member usually, all has a contact-making surface on two opposing ends.When switchgear was connected, these touched bridge and are moved, and its contact-making surface contacts with the corresponding contact face of contact, thereby power consumption equipment is linked to each other with power supply unit.And when switchgear disconnects, touch mobile that bridge takes place and make that corresponding contact-making surface is separated from one another, thereby power consumption equipment is disconnected from power supply unit.For guaranteeing that when switchgear is connected two contact-making surfaces that touch bridge contact with the corresponding contact face safety of fixed contact therefor, touch bridge and do not take rigidity construction mode usually, but have certain admissible suppleness especially.This suppleness is for example by selecting suitable material or by realizing for the corresponding moulding of arc contact (contact bow) selection.
Therefore, each pliable and tough activity is touched bridge and is all had a pair of contact-making surface and two switching points.When between the corresponding contact face of these contact-making surfaces and relevant arc contact welding taking place, switching point no longer disconnects because welding has taken place, thereby causes switchgear to break down.At this moment, as long as the wherein contact-making surface generation welding of an end of arc contact just might cause switchgear to break down.Have only an end to leave contact when in the case, touching the bridge disconnection.Because the other end is still bonding, touch bridge and can only in the scope that predetermined suppleness is allowed, move, rest on subsequently on the position, and this position is not the safe work state of switchgear during corresponding to off-state.The another kind of failure condition that might occur is, two contact-making surfaces that touch bridge all with the corresponding contact face generation welding of contact.In the case, because welding has all taken place at two ends, touch bridge and can only bend in given suppleness scope again, still resting on one subsequently is not on the position of the safe work state of switchgear during corresponding to off-state.
Therefore, according to the present invention, tackle following situation and test, that is, whether activity touches a certain disconnection stroke that bridge passed by greater than a predetermined cut-off point when disconnecting., just can think to have the contact weld phenomenon, thereby the further work of necessary interrupt switch equipment if even one of them touches the identified disconnection stroke of bridge still being lower than this cut-off point through after being similarly predetermined time duration after the disconnection.
If there is a kind of like this failure condition, the further work that can for example come interrupt switch equipment just by the Redundanter schalter element of connecting that disconnects a device interior with main contacts.No matter main contacts is to disconnect or closure, and described switch element all can make power consumption equipment disconnect from power supply unit.Because described switch element can't be closed easily again, the further work that just can end switchgear safely.As the replacement scheme that disconnects this scheme of extra switch element, but the also driving of interruption controls magnet under failure condition till it resets, stops its purpose that works on thereby reach.Can trigger a corresponding powerful accumulator at device interior in addition, thereby described accumulator by being had an effect, the welding main contacts makes it separately disconnect once more.
Fig. 2 shows that in schematic form one has first embodiment of the switchgear 110 of device of the present invention.The control signal that switches on and off that is used for closed and disconnected main contacts 10 is sent to control magnet 12 by terminal A1, A2 and a control device 16.When disconnecting, by 16 pairs of control magnet de-energisations of control device as the electromagnetic drive mechanism 12 of main contacts.Wherein, apply the power that can overcome contact load spring 17 by connecting 18 on the bridge touching.Can disconnect main contacts 10 whereby, thereby power consumption equipment M is disconnected from power supply unit (representing with three lead L1-L3) herein.
After 12 de-energisations of control magnet, an analytical equipment 15 touches bridge by electrode 11,11 ' check and whether has surpassed predetermined cut-off point.In order to measure the voltage drop on the main contacts 10, in the present embodiment, each current path be furnished with respectively two electrodes 11 and 11 ', specifically, one is arranged in main contacts 10 upstreams, one is arranged in the main contacts downstream.According to the present invention, disconnect main contacts 10 after, analytical equipment 15 is by electrode 11 and 11 ' main contacts 10 is carried out the voltage check.If the voltage drop on one of them main contacts 10 is too low, this disconnection degree that this main contacts just is described is big inadequately.That is to say, touch the disconnection stroke that bridge passes by during disconnection and surpass predetermined value, probably have the welding phenomenon this moment.
If it is still too short to have passed through the disconnection stroke that is identified under the situation of predetermined lasting time (100ms) after triggering a cut-off signal, just must guarantee that the further work of switchgear is interrupted.In the present embodiment, analytical equipment 15 links to each other with control device 16 by the connection of not making detailed icon among the figure for this reason.In the case, when analytical equipment 15 identified so a kind of failure condition, it can send this failure condition to control device 16, and described control device 16 will cut off at least one control line in view of the above.
In addition, in the present embodiment, also start a trigger mechanism 14 in order to discharge a spring energy storage device 13.This spring energy storage device can for example be by the known switching device shifter of circuit breaker or compact starter employing.This switching device shifter can be mechanically the main contacts 10 that does not disconnect on the impact switch facility switching point energetically, thereby make the main contacts that welding takes place separate.Wherein, for reaching the purpose that main contacts is separated, must make spring energy storage device 13 have the power of corresponding size.After this, spring energy storage device 13 or rest on the off-position can't reset again; Perhaps spring energy storage device 13 has a mechanism, by this mechanism tensioning spring again, and locking trigger mechanism 14 again.Because therefore resetting and can only carrying out with manual mode of mechanism 13 and 14, when the operator finds failure condition, must make respective reaction, for example changes switchgear.
Embodiments of the present invention shown in Figure 2 (wherein also having used method of the present invention) are specially adapted to situation about need monitor separately each main contacts 10, yet also are specially adapted to only have the single-phase switch equipment of a main contacts.When two contact-making surfaces that touch bridge all take place when bonding, for example can identify the unsafe condition of main contacts 10 by electrode pair 11 and 11 ' the be applied to boost voltage on the main contacts 10 by one.In the case, after disconnection, take place still to have boost voltage on the bonding main contacts.By monitoring to this boost voltage or to the electric current that the equivalent resistance owing to main contacts produces with analytical equipment 15, that can identify this main contacts 10 touches bridge because welding takes place above cut-off point.The failure condition that analytical equipment identifies this subsequently sends to control device 16, thereby based on the failure condition that has occurred and the further work of interrupt switch equipment.Except that the method that realizes by boost voltage mentioned above, also can take other execution mode.For example, can by analytical equipment to load-side electrode 11 and net lateral electrode 11 ' between voltage difference analyze.Perhaps be exactly simply the supply voltage that exists on the load-side electrode 11 to be tested.
According to another embodiment of detailed icon not, also can only be that each current path is equipped with a current sensor.This execution mode is mainly used in two-phase or multiphase switchgear.In the case, can be by each current path being carried out whether surpassed cut-off point after disconnection is discerned in current measurement.When being that cut-off point is not when being exceeded, with regard to the further work of interrupt switch equipment by the situation that current measurement identified.
Fig. 3 shows another embodiment of device of the present invention in schematic form, wherein, and directly with the disconnection stroke to be identified that touches bridge on the analytical equipment 25 inquiry switching points 20.For example, this can be by the respective members 21 of detailed icon and realizing not among Fig. 3.Thereby, for example, break-make monitoring part can be set, when connecting under the situation of main contacts closure, described break-make monitoring part can enter one first state, and when one of them main contacts generation welding, described break-make monitoring part still can keep this first state after disconnection.
At this moment, during first state that the predetermined state when these members still keep this and disconnect after disconnection after does not conform to, think that then the disconnection stroke that identifies has been lower than predetermined value.
Embodiments of the present invention shown in Figure 3 (wherein also having used method of the present invention) are specially adapted to need identification to touch bridge whether to have only wherein that welding or bonding situation have taken place the contact-making surface of an end.Taking place under the situation of this fault just,, touching the stroke that bridge passes by and to guarantee that switchgear keeps safe condition though main contacts 20 can disconnect when disconnecting power consumption equipment.Perhaps think when this failure condition takes place,, touch that second contact-making surface of bridge opposite side is very fast also welding can to take place because the pitting of contacts degree increases.If analytical equipment 25 touches the stroke that bridge passes by because the cut-off point that an end welding is lower than safe off-state takes place by what member 21 identified main contacts 20 when disconnecting, but the further work of interrupt switch equipment just.
Can be in an advantageous manner with execution mode shown in Figure 3 with illustrated measure combines by Fig. 2.Thereby, for example, can identify the phenomenon of an end welding by member 21, therefrom can obtain such indication, that is, switchgear is about to break down owing to main contacts no longer disconnects.But in the further work process of switchgear, have only when when being applied to boost voltage on the supplemantary electrode (for example electrode 11 and 11 ') and identifying main contacts because two ends take place bonding and may not disconnect again, just the real further work of interrupt switch equipment.
According to another embodiment, also can be by directly on the coil of control magnet, carrying out the disconnection stroke that inductance measurement is discerned main contacts.The inductance that the control magnet is had under normal on-state is different from the inductance that it is had under off-state.When not reaching the inductance under this off-state after disconnecting, just can think that cut-off point is not exceeded, switchgear is disconnected.
That Fig. 4 shows is another embodiment of device of the present invention.Be provided with herein another switch element 39 of being used for interrupt switch equipment further work under failure condition ', it is connected with the main contacts 30 that really plays on-off action in each current path.When weldings took place one of them main contacts 30, there was a low excessively voltage drop in analytical equipment 35 by electrode 31 and 31 ' identify on this main contacts.Analytical equipment 35 is had an effect in view of the above, and a trigger mechanism 34 is started working, thereby discharges a spring energy storage device 33.This spring energy storage device 33 is by 39 pairs of switch elements 39 of effective connection ' have an effect, and with its disconnection.In the case, no matter main contacts is to disconnect or still be in closure state, but safety cut-off current paths all, thus the further work of ending switchgear.
Claims (15)
1. method that makes a switchgear trouble free service, but described switchgear has main contacts and at least one control magnet of at least one closed and disconnected, described main contacts has a plurality of contacts and bridge is touched in an activity, described control magnet has a moving armature, described armature is had an effect to the described bridge that touches when described switchgear is switched on and disconnects, and makes corresponding main contacts closed and disconnected; Described method comprises the following steps:
A), bridge is touched in the activity of described at least one main contacts after disconnection, whether surpass a cut-off point and discern by touching the state that bridge is in effective member that is connected with described;
B) if described member the state that is kept after the disconnection with disconnect after predetermined state do not conform to, just be illustrated in through described cut-off point behind the predetermined lasting time and be not exceeded, interrupt the further work of described switchgear.
2. method according to claim 1 is characterized in that,
Realize that electric current in the current path of break-make is discerned and surpass described cut-off point whether by measuring the described main contacts of a usefulness, if the electric current that records greater than the predetermined current after disconnecting, just expression surpasses described cut-off point.
3. method according to claim 1 is characterized in that,
Discern and surpass described cut-off point whether by measuring a voltage drop on the main contacts, if described voltage drop is fallen less than the predeterminated voltage after disconnecting, just expression surpasses described cut-off point.
4. method according to claim 1 is characterized in that,
Discern whether surpassed described cut-off point by an inductance of measuring described control magnet, if the value that disconnects the described inductance in back with disconnect after predetermined value do not conform to, just expression is above described cut-off point.
5. according to the described method of each claim in the claim 1 to 4, it is characterized in that,
Be connected on the further work that switch element in the current path interrupts described switchgear by disconnecting one with described main contacts.
6. according to the described method of each claim in the claim 1 to 4, it is characterized in that,
By cutting off the further work that at least one control line that is used to control described control magnet interrupts described switchgear.
7. device that is used to make a switchgear trouble free service, but described switchgear has main contacts and at least one control magnet of at least one closed and disconnected, described main contacts has a plurality of contacts and bridge is touched in an activity, described control magnet has a moving armature, described armature is had an effect to the described bridge that touches when described switchgear is switched on and disconnects, but makes corresponding main contacts closed and disconnected;
It is characterized in that,
Be provided with first member, described first member is used to discern and surpasses a cut-off point that touches bridge of described at least one main contacts whether, and comprises a release mechanism, and described release mechanism effectively is connected with the described bridge that touches, and can enter one first and one second state,
Be provided with other members, when described first member is identifying after the disconnection when not being exceeded through described cut-off point behind the predetermined lasting time, described other members interrupt the further work of described switchgear.
8. device according to claim 7 is characterized in that,
Described first member comprises a current sensor, and described current sensor is measured the electric current in the current path of the described main contacts realization of usefulness break-make.
9. device according to claim 7 is characterized in that,
Described first member comprises two electrodes, and wherein, described two arrangement of electrodes are for emitting the voltage drop on the described main contacts.
10. device according to claim 7 is characterized in that,
Described first member comprises that one is used to detect the member of an inductance, and the described member that is used to detect an inductance is measured the inductance of described control magnet.
11. according to the described device of each claim in the claim 7 to 10, it is characterized in that,
Described other members comprise an analytical equipment, and described analytical equipment is connected on the further work that switch element in the described current path interrupts described switchgear by disconnecting one with described main contacts.
12. according to the described device of each claim in the claim 7 to 10, it is characterized in that,
Described other members comprise that one is used to control the control device of described control armature, and the control line that described control device is used to control described control armature by cut-out interrupts the further work of described switchgear.
13. a switchgear, it is by implementing to come break-make power consumption equipment safely according to the described method of each claim in the claim 1 to 6, and wherein, described switchgear is a contactor, a circuit breaker or a compact branch road.
14. a switchgear that is used for safe break-make power consumption equipment, it has one according to the described device of each claim in the claim 7 to 12, and wherein, described switchgear is a contactor, a circuit breaker or a compact branch road.
15. according to claim 13 or 14 described switchgears, it is characterized in that,
Described switchgear is a triple-pole switch equipment, and described triple-pole switch equipment comes three current paths of break-make by three main contactss and has a control magnet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004062267A DE102004062267A1 (en) | 2004-12-23 | 2004-12-23 | Method and device for safe operation of a switching device |
| DE102004062267.1 | 2004-12-23 | ||
| PCT/EP2005/057082 WO2006069963A1 (en) | 2004-12-23 | 2005-12-22 | Method and device for the secure operation of a switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101088133A CN101088133A (en) | 2007-12-12 |
| CN101088133B true CN101088133B (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800446948A Expired - Fee Related CN101088133B (en) | 2004-12-23 | 2005-12-22 | Method and device for the secure operation of a switching device |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7872552B2 (en) |
| EP (1) | EP1829065A1 (en) |
| JP (1) | JP2008525949A (en) |
| KR (1) | KR101012524B1 (en) |
| CN (1) | CN101088133B (en) |
| DE (1) | DE102004062267A1 (en) |
| WO (1) | WO2006069963A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1829068B1 (en) * | 2004-12-23 | 2018-09-12 | Siemens Aktiengesellschaft | Method and device for the safe operation of a switching device |
| CN102859375B (en) * | 2010-02-23 | 2017-05-10 | Abb技术有限公司 | Protective switch with status detection |
| JP6206697B2 (en) * | 2012-11-30 | 2017-10-04 | 富士電機機器制御株式会社 | electromagnetic switch |
| CN103499790A (en) * | 2013-09-30 | 2014-01-08 | 河南开启电力实业有限公司 | Online detection device for switching-on/off state of power distribution network |
| DE102017208648A1 (en) * | 2017-05-22 | 2018-11-22 | Siemens Aktiengesellschaft | Diagnostic soft starter, diagnostic procedure and motor arrangement |
| US10967754B2 (en) * | 2018-09-06 | 2021-04-06 | Ford Global Technologies, Llc | Electrified vehicle contactor status |
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| FR2642893B1 (en) * | 1989-02-03 | 1991-04-19 | Telemecanique Electrique | PROTECTED INVERTER-CONTACTOR USING A MULTIFUNCTIONAL TRANSMISSION SYSTEM FOR THE CONTROL OF CONFIRMATION SWITCHES |
| JP2812810B2 (en) * | 1990-02-14 | 1998-10-22 | 三菱電機株式会社 | Switch |
| DE4427006A1 (en) | 1994-07-29 | 1996-02-01 | Siemens Ag | Method for determining the remaining service life of contacts in switchgear and associated arrangement |
| DE19602118C2 (en) * | 1996-01-22 | 1999-12-30 | Siemens Ag | Electrical switching device |
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| DE19734224C1 (en) * | 1997-08-07 | 1999-02-04 | Siemens Ag | Method and device for determining switchgear-specific data on contacts in switchgear and / or for determining company-specific data in the network connected with it |
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| US6943654B2 (en) * | 2003-02-28 | 2005-09-13 | Eaton Corporation | Method and apparatus to control modular asynchronous contactors |
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2004
- 2004-12-23 DE DE102004062267A patent/DE102004062267A1/en not_active Withdrawn
-
2005
- 2005-12-22 US US11/793,714 patent/US7872552B2/en not_active Expired - Fee Related
- 2005-12-22 CN CN2005800446948A patent/CN101088133B/en not_active Expired - Fee Related
- 2005-12-22 WO PCT/EP2005/057082 patent/WO2006069963A1/en active Application Filing
- 2005-12-22 JP JP2007547533A patent/JP2008525949A/en not_active Withdrawn
- 2005-12-22 EP EP05825230A patent/EP1829065A1/en not_active Withdrawn
- 2005-12-22 KR KR1020077016972A patent/KR101012524B1/en not_active IP Right Cessation
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|---|---|---|---|---|
| US4737749A (en) * | 1985-11-14 | 1988-04-12 | Siemens Aktiengesellschaft | Electromagnetic switchgear |
| US5455733A (en) * | 1992-06-10 | 1995-10-03 | Gmi Holdings, Inc. | Contact status monitor |
| US6023110A (en) * | 1995-06-12 | 2000-02-08 | Abb Research Ltd. | Switching equipment |
| CN1408137A (en) * | 2000-04-07 | 2003-04-02 | 西门子公司 | Switching method for an electromagnetic switching device and an electromagnetic device corresponding thereto |
| EP1298689A2 (en) * | 2001-09-28 | 2003-04-02 | Moeller GmbH | Arrangement for monitoring motor starters |
| CN101084561A (en) * | 2004-12-23 | 2007-12-05 | 西门子公司 | Method and device for the secure operation of a switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008525949A (en) | 2008-07-17 |
| US7872552B2 (en) | 2011-01-18 |
| EP1829065A1 (en) | 2007-09-05 |
| DE102004062267A1 (en) | 2006-07-13 |
| WO2006069963A1 (en) | 2006-07-06 |
| KR101012524B1 (en) | 2011-02-07 |
| US20080036562A1 (en) | 2008-02-14 |
| CN101088133A (en) | 2007-12-12 |
| KR20070089879A (en) | 2007-09-03 |
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